Angle-roller socket for inking-rollers.



1. F. JOHNSON. I ANGLE ROLLER SOCKET FOR INKING ROLLERS.

APPLICATION FILED MAR. I

Patented July 27, 1915.

Wi (neooeo 4 i y I 7 W UNIT-El) STATES PATENT @FFKQE.

JOHN FRANK JOHNSON, F BATTLE CREEK, MICHIGAN.

ANGLE-ROLLER SOCKET FUR 1N KIN (IT-ROLLERS.

J OHNSON, a

, in connection with inking rollers of printing presses, and particularlyadapted for use on presses in which the ink is distributed on a i reciprocating table which alternately contactswiththe rollers. In such presses the inking rollers when operating at high speed are apt to spin "or revolve rapidly by momentum when the inking table leaves them,

and to be rotating by momentum in a direction contrary to that in which they must turn whenthe inking table again comes into contact with them; and because of this the inking rollers deteriorate and wear rapidly.

The principal object of my invention is to prevent the spinning or rapid revolving of the inking rollers when leaving the ink table, and to stop same before the table again contacts therewith.

,A further object of my invention is to dispense with the small riders, and with movable poweractuated braking devices, to retard the idle turning of the rollers, some of which devices injure the surfaces of the inking rollers, and others are complicated and expensive or otherwise objectionably noisy.

My invention consists in a novel combined socket and brake which will permit free turning'of the inking rollers while in contact with the inking table and will stop such'rollers automatically when theink tablel passes out oft contact with the inking rollers and before it again contacts therewith; and which will'permit the ready-removal, 'and replacing of the rollers, after cleaning. 1 Q 1 I will explain the invention in connection withfthe accompanying drawings which illustrate a practical embodiment thereof, and will summarize in the claims the features andmessentials of the invention for which protection is desired. 1

In said drawings: Figure 1 is a detail side Specification of Letters Patent.

Application filed March 1, 1915.

vgral.

Patented July 27, 1915. Serial No. 11,298.

elevation of part of a printing press showing two inking rollers mounted in my novel combined sockets and brakes. Fig. 2 is a longitudinal vertical section through one of the roller sockets and brakes. Fig. 3 is a vertical transverse section on line 33, F ig. 2. Fig. at is a top plan view of one of the roller sockets and brakes.

My novel combined inking roller socket and brake can be used on printing presses of'ordinary construction; and as indicated in the drawings such press may have a reciprocating ink table T that is traversed back and forth under the inking rollers in the ordinary manner by the usual means. Each inking roller is commonly formed of a central metallic shank or shaft S having reduced portions 8 on its ends, adapted to engage the usual roller sockets, such shaft hav ing a cylindric wrapper I, of the usual composition, by which the ink is distributed on the table as the latter reciprocates thereunder. Such presses and inking rollers are well known and need no detailed description. a

In place of the ordinary roller-sockets I use my novel combined roller sockets and brakes, each comprising a socket'portion and a brake portion which are practically inteshank 1, which may be like that of an ordinary socket, provided at its upper end with a slot or bifurcation 2 in which the parts 8 of the inking rollers are accommodated in the usual. manner. Adjacent the upper end of the shank and at one endof the slot 2 is an inwardly projecting and preferably integral member 3, which is preferably concavo-conveX in cross section, its interior bemg of larger diameter than the width of the slot 2 so that it can accommodate the uncovered end S of the roller shaft S adjacentth'e'trunnions and to the inside of the .slot 2. The bottom ofthis member 3 may be provided with openings 3 sothat any matters deposited in said member can readily escape therefrom. To the opposite sides of and within this member 3 are attached longitudinally disposed braking devices, preferably composed of short strips. 4 of leather or other suitable frictional material, which may be secured to the member 3 in any suitable manner, rivets 4 being indicated in the drawings. The member 3 is of such interior cross sectionand the brake members 4 so disposed therein that the adj a As shown the socket portion has a ill cent ends S of the inking roller shaft will contact with these braking devices before,

the parts .9 thereof can seat in the bottom of the slots 2.

When the table T is not in contact with the inking rollers the latter are supported on the sockets by engagement of the ends S of the roller shafts with the braking devices 4 in the members 3, as indicated in Figs. 1 and 3; but when the table T comes under the rollers, as indicated in dotted lines in Fig. 1 the rollers I are bodily'lifted by and ride upon the table, and the ends S of the roller shafts are raised clear of the frictional devices 4 so that the rollers can freely rotate; but lateral displacement of the rollers is prevented by reason of the loose engagement of the parts .9 of the shaft with the sides of slots 2.

It will be seen that with this construction when the table T engages the rollers 1 they ride up and are free to rotate thereon but as soon as the table leaves the rollers the latter drop and the ends S of the roller shaft engage the frictional devices 4, and the weight of the roller is sufficient to cause the friction between the ends of the shaft. and

said members 4 to quickly stop the momentum rotation of the rollers; and the rollers can thus be stopped before the table again contacts therewith.

With ordinary sockets the angle inking rollers when the inktable leaves them spin by momentum and are apt to strike against the sockets and rebound so that they lose part of their effective distribution, but my combined sockets and brakes prevent such rebound by bringing the rollers to a stop about as soon as they leave the ink plate.

My combined sockets and brakes are noiseless in operation, require no special work on -a press to apply them thereto; preserve the faces of the rollers from cracking and being injured by contact with the ink table while improperly revolving; and bring the rollers into condition to properly contact with the ink table. There are no nice adjustments to bejmade, nor parts to take off or replace when removing rollers from or replacing rollers in the press; and there beingno necessity of using any steel riders in connection with the inking rollers the handling and cleaning of such riders is avoided.

My combined sockets and brakes are adapted to automatically brake inking rollers having shanks or shafts of somewhat difl'erent diameters, because owing to the shape of the members 8 the brake devices A converge toward the bottom of said members and thus are adapted to automatically engage and brake inking roller shafts of different diameters.

With my invention no movable parts have to be operated in order to apply the brake; the braking being automatically performed upon the mere dropping of the inking roller clear of the table. Such combined roller socket and brakes are simple, inexpensive and efficient, and can be readily substituted for the ordinary roller sockets now in common use.

While I have describedthe invention as used with inkingrollers co-acting with'a reciprocating ink table, it is obvious they can be used with other distributing surfaces, and the invention is not restricted to the specific utilization thereof herein set forth, nor to the specific construction of parts shown.

hat I claim is:

1. A roller socket andvbrake having a laterally projecting member extending longitudinally of therollerand adapted to be frictionally engaged by the roller when the latter is out of contact with its co-acting surface, substantially as described.

2. A roller socket and-brake having a laterally projecting member extending longitudinally of the roller and adapted to be frictionally engaged by the inking roller shaft when the latter is clear of the ink distributing table. i

3. A roller socket and brake'having a lat-1 erally projecting member extending longitudinally of the roller and providedv with frictional devices adapted to be engaged by the inking roller shaft when the latter is clear of the ink distributing table.

4:. A roller socket and brake having a slotted shank, and a lateral extension rigidly connected therewith and adapted to be engaged by the roller when the latter is clear of the co-acting surface.

5. A combined roller socket and brake having an extension rigidly connected therewith and provided with frictional braking members adapted to be automatically engaged by the inking roller whenthe latter is clear of the inking table.

6. A combined roller'socket and brake having a shank, a yoke and a] lateral extension rigidly connected therewith provided with frictional devices adapted to be engaged by the roller shaft when the roller is clear of the inking table. y

7. A combined roller socket and brake having a slotted shank, and a lateral extension trough-shaped in cross section and adapted to be engaged by the roller shaft when the roller is clear of theinking table.

8. The-herein described inking roller socket and brake having a slot for engagement of the trunnions of the inking roller and a laterally extending portion rigidly connected therewith and adapted to befrietionally engaged by the roller shaft when the roller is clear of the ink table, substan tially as described. I

9. A roller socket and brake having a slotted shank, and a lateral extension rigidly connected therewith and provided with lon- ISO gitudinally disposed frictional devices adapted to stop the roller when the latter is clear of the inking table.

10. A combined roller socket and brake having a slotted shank, and a lateral extension trough-shaped in cross section and 10ngitudinally arranged frictional braking devices attached to the inner sides of the trough.

11. A combined roller socket and brake having a slotted shank, and a lateral extension trough-shaped in cross section; With Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

